Tracking unique visitor without cookies by analysing browser configurations with over 84% accuracy
For all of you online analysts out there that are scared of cookie deletion rates, private browsing modes and increasingly restrictive privacy laws, there’s hope!
The EFF (Electronic Frontier Foundation) has an interesting project called Panopticlick that determines uniqueness of visitors without cookies by analysing the exact browser configuration of a person (i.e. version, fonts, plug-ins, etc). I just did the Panopticlick online browser uniqueness test and it seems that my browser configuration was unique among the so far tested 993,912 people. Go do the test now and help these guys increase their sample size.